
html {
  font-size: calc(100vw / 19.8);
}

@media screen and (min-width: 1980px) {
  html {
    font-size: 100px;
  }
}

body {
  margin: 0;
  padding: 0;
  font-size: 0.16rem; 
  line-height: 1.5;
}